dotnet/Documentation/compatibility/wpf-textbox-defaults-to-undo-limit-of-100.md

WPF TextBox defaults to undo limit of 100

Scope

Edge

Version Introduced

4.5

Source Analyzer Status

Planned

Change Description

In .NET Framework 4.5, the default undo limit for a WPF textbox is 100 (as opposed to being unlimited in .NET Framework 4.0)

• Quirked
• Build-time break

Recommended Action

If an undo limit of 100 is too low, the limit can be set explicitly with xref:System.Windows.Controls.Primitives.TextBoxBase.UndoLimit

Affected APIs

• T:System.Windows.Controls.TextBox

Category

Windows Presentation Foundation (WPF)